CN109492965B - Logistics management system and electronic equipment - Google Patents
Logistics management system and electronic equipment Download PDFInfo
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- CN109492965B CN109492965B CN201811199809.6A CN201811199809A CN109492965B CN 109492965 B CN109492965 B CN 109492965B CN 201811199809 A CN201811199809 A CN 201811199809A CN 109492965 B CN109492965 B CN 109492965B
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Abstract
The invention provides a logistics management system and electronic equipment; the material preparation module collects specific information of materials to be warehoused, generates an identification code, and performs box combination and tray combination operation on the materials to be warehoused according to the identification code, a bar code of a bin and an RFID (radio frequency identification) tag of a tray; the material warehousing module generates warehousing tasks according to the inventory condition, the materials to be warehoused and the RFID label of the first forklift carrying and storing the materials to be warehoused, controls the first forklift to warehouse in the tray storing the materials to be warehoused and updates the inventory condition; the material delivery module receives the stock preparation demand, generates a delivery task according to the stock preparation demand and the stock condition, controls a second forklift in the warehouse to deliver the material box for storing the material to be delivered out of the warehouse, and updates the stock condition; and the material distribution module controls the second forklift to reach the required station, receives a material checking result sent by the required station, and checks the stock condition according to the result. The invention improves the working efficiency of the processes of material warehousing and discharging, material distribution and the like in the logistics management process.
Description
Technical Field
The invention relates to the technical field of intelligent warehouses, in particular to a logistics management system and electronic equipment.
Background
Currently, in the automobile manufacturing industry, warehouse logistics management is usually implemented in the form of an ERP (Enterprise Resource management Planning) warehouse management system or a note, such as warehousing and warehousing of materials and material distribution, and a large amount of manpower and material resources are consumed to perform inventory in the warehouse, so that the efficiency is low.
Disclosure of Invention
In view of the above, the present invention provides a logistics management system and an electronic device, so as to improve the work efficiency of the processes of material warehousing and transportation, material distribution, and the like in the logistics management process.
In a first aspect, an embodiment of the present invention provides a logistics management system, where the logistics management system is applied to a warehouse; the system comprises a material preparation module, a material warehousing module, a material ex-warehouse module and a material distribution module which are sequentially connected in a communication manner; the material preparation module is used for acquiring specific information of materials to be put in storage, generating identification codes of the materials to be put in storage, and carrying out box combination and tray combination operation on the materials to be put in storage according to the identification codes, the bar codes of the material boxes and the RFID tags of the trays; the material warehousing module is used for generating a warehousing task according to a pre-stored inventory condition, materials to be warehoused and an RFID label of a first forklift carrying and storing the materials to be warehoused, controlling the first forklift to warehouse trays storing the materials to be warehoused according to the warehousing task, and updating the inventory condition; the warehousing task comprises warehousing warehouse location information and an RFID label of the first forklift; the inventory condition at least comprises specific information, identification codes, bar codes corresponding to the bins and RFID tags corresponding to the trays of the materials stored in the current warehouse; the material delivery module is used for receiving the stock preparation demand, generating a delivery task according to the stock preparation demand and the stock condition, controlling a second forklift in the warehouse to deliver the material box storing the material to be delivered out of the warehouse based on the delivery task, and updating the stock condition; the material preparation requirements comprise the types, the sorting amount and the required stations of the materials to be delivered from the warehouse; the ex-warehouse task at least comprises a bar code of a material box for storing materials to be ex-warehouse and an RFID chip label of a tray; and the material distribution module is used for controlling the second fork truck to arrive at the required station, receiving a material verification result sent by the required station, and checking the inventory according to the verification result.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where when the material to be warehoused is a component; the specific information comprises quality control attributes and key product characteristics; the material preparation module comprises a technical state identification submodule, a box assembling submodule and a dish assembling module; the technical state recognition submodule is used for recognizing the quality inspection attribute and the key product characteristic of the part and generating an identification code of the part; the box assembling sub-module is used for binding the identification codes of the parts with the serial numbers of the material box after the parts are placed in the material box; the number of the bin is obtained by scanning a bar code of the bin; the plate combination module is used for binding the serial number of the workbin with the identity code of the tray after the set number of the workbin is placed on the tray; the identity code of the pallet is obtained by scanning the RFID tag of the pallet.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the material warehousing module includes a warehouse location division sub-module, a warehousing task determination module, and a warehousing control module; the storage position dividing submodule is used for dividing storage positions according to the pre-stored storage condition and the materials to be stored in the storage by adopting a production plan arrangement algorithm; the warehousing task determining module is used for determining warehousing position information and coding information of the first forklift as warehousing tasks; the coded information of the first forklift is obtained by scanning an RFID tag of the first forklift; the warehousing control module is used for controlling the first forklift to warehouse in the tray storing the materials to be warehoused and updating the warehousing condition according to the identification code, the bar code of the bin and the RFID label of the tray.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the material warehousing module further includes a warehousing manner selection sub-module; the warehousing mode selection module is used for selecting the warehousing mode of the tray; the warehousing mode comprises a channel door warehousing mode and a rolling machine warehousing mode.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the material ex-warehouse module includes an ex-warehouse task generation sub-module and an ex-warehouse control module; the ex-warehouse task generation submodule is used for receiving the material preparation requirement and generating an ex-warehouse task according to the material preparation requirement and the stock condition; and the ex-warehouse control module is used for controlling a second fork truck in the warehouse to reach the warehouse position corresponding to the ex-warehouse task based on the ex-warehouse task, controlling the second fork truck to ex-warehouse the material box storing the material to be ex-warehouse after the material box storing the material to be ex-warehouse corresponding to the ex-warehouse task is placed on a forklift, and updating the stock condition according to the bar code of the material box storing the material to be ex-warehouse.
With reference to the fourth possible implementation manner of the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the material ex-warehouse module further includes an ex-warehouse material indication sub-module; and the delivery material indicating submodule is used for sending the bar code of the bin storing the materials to be delivered to the second forklift, and controlling the second forklift to display the bar code of the bin so that a picker can pick the materials according to the bar code.
With reference to the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the material distribution module includes a station distribution sub-module and a verification result receiving module; the station distribution sub-module is used for sending the position information of the required station to the second forklift so as to control the second forklift to reach the required station; the checking result receiving module is used for receiving a material checking result sent by the required station and checking the inventory according to material information in the checking result; the material checking result is obtained by scanning and storing the bar code of the material box of the material to be delivered.
With reference to the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, where the system further includes a storage module; the storage module is respectively in communication connection with the material preparation module, the material warehousing module, the material ex-warehouse module and the material distribution module; the storage module is used for storing the stock condition, the updating condition of the stock condition, the warehousing task, the ex-warehouse task and the material checking result; the update condition comprises update time and update content.
In a second aspect, an embodiment of the present invention further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program that can be executed on the processor, and is characterized in that the processor implements the logistics management system when executing the computer program.
In a third aspect, an embodiment of the present invention further provides a computer-readable medium having a non-volatile program code executable by a processor, where the program code causes the processor to execute the logistics management system.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a logistics management system and electronic equipment; the material preparation module collects specific information of materials to be put in storage, generates identification codes of the materials to be put in storage, and performs box combination and tray combination operation on the materials to be put in storage according to the identification codes, the bar codes of the bins and the RFID tags of the trays; the material warehousing module generates a warehousing task according to a pre-stored inventory condition, the materials to be warehoused and the RFID label of a first forklift carrying and storing the materials to be warehoused, controls the first forklift to warehouse trays storing the materials to be warehoused according to the warehousing task, and updates the inventory condition; the material delivery module receives the stock preparation demand, generates a delivery task according to the stock preparation demand and the stock condition, controls a second forklift in the warehouse to deliver the material box storing the material to be delivered out of the warehouse based on the delivery task, and updates the stock condition; and the material distribution module controls the second forklift to reach the required station, receives the material verification result sent by the required station, and checks the inventory according to the verification result. The mode improves the working efficiency of the processes of material warehousing and discharging, material distribution and the like in the logistics management process.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention as set forth above.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a logistics management system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a material preparation module in a logistics management system according to an embodiment of the present invention;
FIG. 3 is a flowchart of quality inspection attribute detection according to an embodiment of the present invention;
fig. 4 is a flowchart of KPC characteristic detection provided by an embodiment of the present invention;
FIG. 5 is a flow chart of the operation of the gang box and the gang disk provided by the embodiment of the invention;
fig. 6 is a schematic structural diagram of a material warehousing module according to an embodiment of the present invention;
FIG. 7 is a flow chart of PTL ex-warehouse provided by the embodiment of the invention;
FIG. 8 is a flowchart of the system work flow for binding based on the combination of material, bin and tray information provided by an embodiment of the present invention;
fig. 9 is a schematic diagram of transparent management of a warehouse according to an embodiment of the present invention;
fig. 10 is a schematic diagram of JIT operation according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, the existing material management system needs to consume a large amount of manpower and material resources to check the stock in the warehouse, and the efficiency is low.
To facilitate understanding of the present embodiment, a detailed description will be given of a logistics management system disclosed in the embodiment of the present invention.
Referring to fig. 1, a schematic structural diagram of a logistics management system, which is applied to a warehouse; the system comprises a material preparation module 100, a material warehousing module 110, a material ex-warehouse module 120 and a material distribution module 130 which are sequentially connected in a communication manner.
The material preparation module 100 is configured to collect specific information of a material to be warehoused, generate an identification code of the material to be warehoused, and perform binning and palletizing operations on the material to be warehoused according to the identification code, a barcode of a bin, and an RFID tag of a tray.
The material warehousing module 110 is configured to generate a warehousing task according to a pre-stored inventory condition, a material to be warehoused, and an RFID tag of a first forklift which carries and stores the material to be warehoused, control the first forklift to warehouse a tray storing the material to be warehoused according to the warehousing task, and update the inventory condition; the warehousing task comprises warehousing warehouse location information and an RFID label of the first forklift; the stock condition at least comprises specific information, identification codes, bar codes corresponding to the bins and RFID tags corresponding to the trays of the materials stored in the current warehouse.
The material delivery module 120 is configured to receive a stock preparation demand, generate a delivery task according to the stock preparation demand and a stock condition, control a second forklift in the warehouse to deliver a bin storing a material to be delivered based on the delivery task, and update the stock condition; the material preparation requirements comprise the types, the sorting amount and the required stations of the materials to be delivered from the warehouse; the delivery task at least comprises a bar code of a material box for storing the materials to be delivered and an RFID chip label of the tray.
The material distribution module 130 is configured to control the second forklift to reach the required station, receive the material verification result sent by the required station, and check the inventory according to the verification result.
When the warehouse is a warehouse in the manufacturing industry of automobiles and the like, the materials to be warehoused can be parts; at this time, the specific information of the material can be quality inspection attributes and key product characteristics; the quality inspection attributes comprise seven items of inspection data such as a stage number, a CAD (Computer Aided Design) ID (identity), a 3D (3-dimensional) data version number, a project, a PSS (Product Structure System) classification, a Control Model and a processing technology; key product characteristics, i.e., kpc (key process characterization), are product characteristics that affect subsequent operations, product functionality, or customer satisfaction. KPC is determined by customer engineers, quality representatives, and supplier personnel from reviewing the design and process FMEA.
In a specific embodiment, the material preparation module may include a technical state identification sub-module 101, a group box sub-module 102, and a group dish sub-module 103, which are sequentially connected in communication, as shown in fig. 2; the technical state recognition submodule 101 is used for recognizing the quality inspection attribute and the key product characteristic of the part and generating an identification code of the part; the box assembling sub-module 102 is used for binding the identification codes of the parts with the serial numbers of the material box after the parts are placed in the material box; the number of the bin is obtained by scanning a bar code of the bin; the plate combination module 103 is used for binding the serial number of the workbin with the identity code of the tray after a set number of workbins are placed on the tray; the identity code of the pallet is obtained by scanning the RFID tag of the pallet.
A flowchart of the process of identifying the quality inspection attribute of the component (also referred to as quality inspection attribute detection) is shown in fig. 3; wherein, the verification data is derived from a purchase order issued by an SAP (systems applications and products in data processing) system. After receiving a purchase order issued by the SAP, an LES System (Logistics Execution System) performs data analysis on parameters in the purchase order, extracts parameter data related to a part in the purchase order, and stores the parameter data of the part into the LES System after the extraction is completed. In the process of quality inspection of received goods of an LES system, the quality inspection attribute of the part can be automatically inquired according to a purchase order to be used as inspection reference, the purchase order stores a theoretical quality inspection attribute value, and in the process of inspection, a person needing quality inspection fills a quality inspection attribute measured value of a corresponding material according to an actual measurement condition.
Fig. 4 shows a flow chart of a process for identifying key product characteristics of a part (also referred to as KPC characteristic detection), where a KPC characteristic data source SAP system issues and an LES system imports, in a process of receiving and quality inspection of a goods by the LES system, KPC information is automatically matched and inquired according to items, stages and materials on a purchase order, if matching is successful, a theoretical value of KPC characteristics related to the material is displayed, and a quality inspector fills an actual measurement value of KPC characteristics of a corresponding material according to an actual measurement condition and determines whether the KPC characteristics are qualified.
After the material receiving quality inspection is filled with the actual measurement data, the quality inspection attribute and the KPC characteristic of the related material can be obtained at any time in the whole logistics management process, such as a material warehouse-in and warehouse-out process, and the technical state of the material is monitored in the whole process.
And after the quality inspection attribute and the KPC characteristic of the material are detected, generating a material bar code. Before generating the material bar code, the material bar code can be divided into a special part, a weight-related part and a common part according to the material attribute. The special part and the weight closing part are one object and one code, namely one bar code corresponds to a single material; the common parts are multiple objects and one code, the rule is that only one bar code is generated on the same item, stage, purchase order and material on the same day, namely, one bar code corresponds to multiple materials, and in the process of generating the material bar codes, the corresponding bar codes are generated according to the material attributes.
In the process of grouping the materials, the rule is that only the same material in the same item, stage and group box on the same day can be grouped into one material box. In the box assembling process, a scanner scans materials and two-dimensional bar codes on the bins in sequence, the scanner can be in communication connection with a Personal Digital Assistant (PDA) intelligent material system, an LES system binds scanned material information with bin numbers, and the box assembling process specifies that one material only can be stored in a single bin, and the condition that a plurality of materials are stored in one bin in a mixed mode is not allowed.
And after the material box assembling operation is completed, carrying out tray assembling operation. The code scanning gun firstly scans a two-dimensional code on a box body of a material box to be assembled, then scans an electronic tray with an RFID chip label by using a radio frequency technology, and the PDA system binds material box information and tray information according to a project stage rule; when the pallets are grouped, materials in a project stage are intelligently stored on one tray, 5 workbins are stored on one tray at present, if the number of the workbins exceeds the number of the workbins, the workbins are not bound, when the pallets are not fully stored in a warehouse, the system prompts information that the pallets are not fully stored on a code scanning gun interface when the pallets are grouped, the maximum utilization rate of the pallets is preferentially ensured, and a racking task list is generated after the pallets are finished; a flow chart of the bin and tray grouping operation for the materials is shown in fig. 5.
In a specific implementation, the material warehousing module may include a warehouse location division sub-module 111, a warehousing task determination module 112, and a warehousing control module 113, and the three modules are sequentially connected in a communication manner, as shown in fig. 6; the storage position dividing submodule 111 is used for dividing storage positions according to pre-stored storage conditions and materials to be stored in a storage by adopting a production plan arrangement algorithm; the warehousing task determining module 112 is configured to determine warehousing location information and encoding information of the first forklift as a warehousing task; the coded information of the first forklift is obtained by scanning an RFID tag of the first forklift; the warehousing control module 113 is used for controlling the first forklift to warehouse in the tray storing the materials to be warehoused, and updating the warehousing condition according to the identification code, the bar code of the bin and the RFID label of the tray. Further, the material warehousing module also comprises a warehousing mode selection submodule; the warehousing mode selection module is used for selecting the warehousing mode of the tray; the warehousing mode comprises a channel door warehousing mode and a rolling machine warehousing mode.
Specifically, after the materials are subjected to the tray grouping operation, the LES System reads the tray information and interacts with a WMS (Warehouse Management System) stereoscopic Warehouse System, and the WMS System performs the Warehouse level planning according to the batch information of the materials and the arrangement algorithm of the inventory condition and the production plan in the current stereoscopic Warehouse, so as to provide the corresponding Warehouse level information for the materials to be warehoused. Each intelligent forklift controlled by the PTL system is provided with an RFID flat reader-writer, and a system in the reader-writer can record information containing the label serial number of the forklift RFID. The industrial flat plate is positioned at the front half section of the forklift, and after receiving the RFID signal on the pallet, the industrial flat plate transmits the RFID signal to the LES logistics management system. And after the warehousing position information is obtained, the LES system generates a warehousing task according to the material information, the warehouse position information and the ID information of the forklift.
If the warehousing mode of the channel door warehousing is selected by the warehousing mode selection submodule, when the forklift reaches the warehousing channel door, the RFID tag of the forklift is read, a PLC (Programmable Logic Controller) integrated circuit sensor built in the channel door sends an instruction request to an LES system through a web service interface, and the request contains the identity code of the forklift; after reading the identity code number, the LES system reads the material information of the material according to the binding record of the group tray box and the forklift group tray, and transmits the material information with a WCS (hotel control system) \ WMS stereoscopic warehouse management system to finish automatic bookkeeping of the passage door in the warehousing process, namely, the above-mentioned stock updating condition.
And if the warehousing mode of the roller bed warehousing is selected by the warehousing mode selection submodule, after an racking task (equivalent to the warehousing task) is generated, the roller bed warehousing operation is carried out. After the tray is correctly placed in the rolling bed, a warehousing button is shot and transmitted to a tray code reading area, the WCS informs the WMS, the WMS sends a request to inform the LES to start an RFID reader-writer to read the tray RFID to obtain a corresponding racking task, the WMS sends a tunnel planned by the racking task to the WCS, the WCS drives the tray to stop at a corresponding tunnel junction through the rolling bed, then a stacker is informed to fork to take the tray to place on a storage position of the tunnel, the result is fed back to the WMS, the WMS sends warehousing information to the LES, and after the LES receives the information, warehousing data storage is executed, namely the inventory condition is updated.
In a specific embodiment, the material delivery module may include a delivery task generation sub-module and a delivery control module, and the two modules are in communication connection; the ex-warehouse task generation submodule is used for receiving the material preparation requirement and generating an ex-warehouse task according to the material preparation requirement and the stock condition; and the ex-warehouse control module is used for controlling a second fork truck in the warehouse to reach the warehouse position corresponding to the ex-warehouse task based on the ex-warehouse task, controlling the second fork truck to ex-warehouse the material box storing the material to be ex-warehouse after the material box storing the material to be ex-warehouse corresponding to the ex-warehouse task is placed on a forklift, and updating the stock condition according to the bar code of the material box storing the material to be ex-warehouse. Further, the material delivery module can also comprise a delivery material indication sub-module; and the delivery material indicating submodule is used for sending the bar code of the bin storing the materials to be delivered to the second forklift, and controlling the second forklift to display the bar code of the bin so that a picker can pick the materials according to the bar code.
When the materials are delivered, two delivery modes of delivery through a passage door and delivery through a PTL (automatic light picking system) are available; when the mode of exit from the warehouse through the passage door is adopted, the RFID forklift is bound with the intelligent material rack. The LES system transmits the storage position information to a forklift ex-warehouse task, and the forklift can place materials needing to pick goods on the material rack according to given material box position information. And waiting for the forklift to carry out a feeding task after completion. The forklift flat plate sends the materials to the line side according to the delivery task list, wherein the delivery task list contains feeding position information of the line side storage position; when adopting PTL mode of leaving warehouse, when the production line has the material demand, the MES system will generate the delivery bill of materials according to station material demand, and issue to the PTL system, the light alarm on the PTL storage dolly of the material buffer memory that corresponds will carry out the light suggestion, send simultaneously and transport the signal and give AGV dispatch system, the AGV dolly bears PTL intelligence work or material rest, deliver the warehouse-out through the RFID door of warehouse export with the demand material, the LES system record material information of leaving warehouse, the MES system is with the management and control of synchronous record warehousing information as the line limit material simultaneously, the flow chart of this process is shown in FIG. 7.
In a specific embodiment, the material distribution module may include a station distribution submodule and a verification result receiving module, and the two modules are in communication connection; the station distribution sub-module is used for sending the position information of the required station to the second forklift so as to control the second forklift to reach the required station; the checking result receiving module is used for receiving a material checking result sent by the required station and checking the inventory according to material information in the checking result; the material checking result is obtained by scanning and storing the bar code of the material box of the material to be delivered.
In the material distribution of the automobile manufacturing industry, when a single automobile type is produced and assembled, single materials are distributed, and a small-batch strategy of delivering the materials at one time can be adopted to distribute the materials to each station; when mixed line production and assembly are carried out, the materials are fed in line side in real time according to requirements.
When an AGV (Automatic Guided Vehicle) reaches an edge station, an RFID reader-writer arranged on the station automatically identifies the skip car; when the AGV trolley sends the material frame to a required station according to a preset distribution route, material information on the PTL material trolley is automatically acquired, intelligent matching is carried out, and whether the material frame is correctly distributed to a correct production line material requirement installation station or not is verified to serve as station checking and error proofing.
When the PTL material rack is used as a carrier for material distribution, the PTL material rack completely records material information of each bin after the material is selected, when materials need to be taken at corresponding stations, the installation state of the stations and the material demand information in the MES system are transmitted to the PTL system, the indicating lamps of the required materials corresponding to the bins in the material rack corresponding to the lines are lightened, the central electronic tag displays the material information of the bins, and guides an operator to take the materials, so that the taking error can be effectively avoided, and the method is also called 'fool assembly'.
During distribution, the actual consumption of the materials is managed and controlled and error-proof in two ways by deducting the materials from the warehouse at the production line; one is the unassembled state of the material, and the stock theory deducts: the production line adopts an AVI (automatic voltage indicator) passing point recording method, the production line is a sliding plate line, the sliding plate below drives the assembled products to slide forward and sequentially enter each installation station according to the assembly sequence for assembly, when the sliding plate enters the installation station, an arrival signal is sent to an MES (manufacturing execution system), and the MES defaults to deduct the type and the quantity of the materials required by the station; the second is the material assembly state, and the actual inventory is deducted. When the materials needed by the station are taken out of the PTL material rack, the PTL system feeds back the information to the MES system, and the MES system deducts the materials from the line edge stock actually, which is equivalent to secondary confirmation of stock deduction.
Further, the system may further include a storage module; the storage module is respectively in communication connection with the material preparation module, the material warehousing module, the material ex-warehouse module and the material distribution module; the storage module is used for storing the stock condition, the updating condition of the stock condition, the warehousing task, the ex-warehouse task and the material checking result; the updating condition comprises updating time and updating content; by inquiring the storage information in the storage module, the condition of the inventory material can be clearly known.
The embodiment of the invention provides a logistics management system; the material preparation module collects specific information of materials to be put in storage, generates identification codes of the materials to be put in storage, and performs box combination and tray combination operation on the materials to be put in storage according to the identification codes, the bar codes of the bins and the RFID tags of the trays; the material warehousing module generates a warehousing task according to a pre-stored inventory condition, the materials to be warehoused and the RFID label of a first forklift carrying and storing the materials to be warehoused, controls the first forklift to warehouse trays storing the materials to be warehoused according to the warehousing task, and updates the inventory condition; the material delivery module receives the stock preparation demand, generates a delivery task according to the stock preparation demand and the stock condition, controls a second forklift in the warehouse to deliver the material box storing the material to be delivered out of the warehouse based on the delivery task, and updates the stock condition; and the material distribution module controls the second forklift to reach the required station, receives the material verification result sent by the required station, and checks the inventory according to the verification result. The mode improves the working efficiency of the processes of material warehousing and discharging, material distribution and the like in the logistics management process.
In a specific embodiment, the logistics management system can be realized by adopting an intelligent logistics execution system LES, a WMS warehousing management system, an SAP system, a PTL intelligent sorting system, an RFID tag identification system, an AGV with an automatic lifting device and an intelligent production execution system MES; based on the logistics management system, a customized logistics management scheme meeting JIT (just in time) just production can be realized, and the functions of material preparation, warehousing, sorting out of warehouses and distribution are realized.
In addition, the scheme adopts a mode of generating a two-dimensional code according to material properties and combining and binding the RFID tag and the material box tray, and a system work flow diagram based on the mode is shown in FIG. 8; based on the scheme, the logistics management scheme can also realize transparent inventory (transparent management of warehouses), and a schematic diagram of the principle is shown in fig. 9, which specifically includes the following steps:
materials can be classified into A, B, C according to their ABC classification: the type A is a critical component, the type B is a secondary critical component, and the type C is a general component. And the materials can be divided into special parts and non-special parts according to the assembly information of the vehicle, the special parts must correspond to the vehicle, the parts are indicated to be only used for assembling a certain vehicle, and the A, B, C materials can be arranged into special parts according to the actual loading condition.
When the system is used for loading and unloading materials, the A-type part and the special part belong to one object and one code, so that the bar codes of the materials only need to be scanned; the common parts of the B-type parts and the C-type parts are multiple objects and one code, and the materials need to be scanned and then the actual number of the in-out warehouse is input. When the system is used for checking the materials, the bar codes of the materials are scanned to obtain all parameter information and inventory quantity of the materials, and the two-dimensional codes are bound with the material box.
Each tray is provided with a fixed RFID label, and after the box assembling is completed, the handheld machine scans the two-dimensional code of the material box to be assembled to obtain the information of the material box. And reading the RFID label of the tray by an RFID reader-writer at the warehousing port, binding the material box with the tray, only scanning the tray label to know the material information of the tray, and finally generating a racking task. And after the racking task is generated, the roller bed is put into a warehouse, the stacker forks the tray and puts the tray into a planned warehouse position in advance, the warehouse position RFID label is read, and the LES calculates and stores the read data. Therefore, the combination binding of the two-dimension codes, the RFID and the material box is completed, the material information corresponding to each storage position can be known only by reading the RFID of the storage position, and the transparent management of the warehouse is realized.
In order to verify the feasibility of the scheme, the scheme is verified by adopting the logistics simulation of virtual reality interaction; aiming at the computer simulation of the whole JIT production logistics strategy, the JIT distribution of materials from a warehouse to a production line side and the JIT combination of a sub-assembly part to the production line are realized by taking the JIT production state of a production line mixed line as the target of setting production logistics; wherein, the JIT system operation schematic diagram is shown in FIG. 10; and (4) pulling the supermarket to distribute the materials by the line edge. Triggering supermarket material distribution when the line edge materials are consumed to be safe in storage; triggering the material of the stereoscopic warehouse to be delivered out of the warehouse when the supermarket material is consumed to be safe in stock; the editing and development of the whole simulation run logic are carried out according to the JIT pull type production mode.
In the simulation process, according to a JIT mode, designing an operation logic, and performing simulation modeling and debugging according to the JIT operation logic; and then, inputting a production logistics scheme strategy in the debugged simulation model, performing simulation operation and analysis in the model, performing operation, analysis and adjustment for multiple times, guiding to obtain an optimal scheme, and implementing the optimal scheme in actual production.
At present, the development trend of the world automobiles is to turn from traditional manufacturing to intelligent manufacturing, and all automobile manufacturers in the world push the concept of automobile industry 4.0 to establish intelligent factories, so as to reduce a series of increasingly high manpower and other costs generated from design to manufacturing, improve the automation rate of production operation and diversified high-quality products, and adapt to the intense competition of the automobile market.
In accordance with this situation, the above-described logistics management scheme for customer-customized production meeting JIT just-in-time production has the following advantages:
(1) the bar code identification technology and the RFID wireless radio frequency technology are adopted to convert materials into information data objects, and all operations are completed by informatization, such as data input by utilizing handheld equipment, industrial-grade flat plates and the like. The technical state of the parts is identified, in the purchasing process, the parts are uniformly issued by SAP or imported by an LES system, parameters are input into the system when a purchasing order or KPC is issued, and the input parameters can provide technical data for a subsequent quality inspection system. And (3) creating a two-dimension code, binding the material and the two-dimension code, and then only scanning the code with a code scanning gun to record all information. The bar code is used for binding the materials, the material box and the tray with the RFID, the materials, the material box and the tray are not required to be stored in a partitioned mode with a traditional factory according to the types of the materials, only the tray is required to be used for specifying items, stages and stations, the material box is used for specifying the materials, the types of the materials can be rapidly distinguished, and multiple types and multiple materials are stored in the same area.
(2) The transparent inventory checking mode that the two-dimensional code, the RFID tag and the material box tray are combined and bound is adopted, so that the information of the types, items, stages, stations and the like of materials can be acquired in real time, the materials can be taken out of the warehouse more conveniently and efficiently, the material turnover rate is increased, and the material picking speed is increased; the RFID reader-writer is arranged on the stacking machine, so that the purposes of automatically scanning the position labels of the warehouse, quickly acquiring material information, and manually checking the warehouse and automatically checking the warehouse are achieved. The double-row goods shelves can read the material information of the double-row inner and outer two-layer storehouse positions only by scanning the RFID labels of the outer layer storehouse positions, so that the vacant storehouse positions can be effectively utilized, the utilization rate of the storage capacity is improved, and transparent management of the warehouse is realized.
(3) Adopt single tray to deposit the storage strategy of multiple material, realize selecting of single tray material multiple species material, utilize and install RFID electronic tags respectively on position in a warehouse, tray, work or material rest to combine LES system, make and all realize the circulation record to the material, the continuation of information in each link of selecting the completion from the position in a warehouse down to the material, through scanning the two-dimensional code, combine PTL's pilot lamp system and display screen to instruct the billboard, can effectively mistake proofing. And (4) adopting a mixed line combination strategy to carry out feeding according to needs, and carrying out real-time feeding on the edge of the production line.
(4) Based on a reality strategy for realizing JIT (just in time) punctuation, simulation software is used for simulating reality, interaction between an MES (manufacturing execution system) system and an LES (electronic manufacturing system) system and 3D (three-dimensional) virtual simulation is realized, and real data and the strategy are verified.
An embodiment of the present invention further provides an electronic device, including: the computer system may include a processor, a Memory having stored therein a computer program operable on the processor, wherein the Memory may include a high-speed Random Access Memory (RAM) and may further include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory.
The memory is used for storing a program, and the processor executes the program after receiving an execution instruction, and the method executed by the apparatus defined by the flow process disclosed in any of the foregoing embodiments of the present invention can be applied to or implemented by the processor.
The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The computer program product for performing an automatic material warehouse entry and exit management system provided by the embodiment of the present invention includes a computer readable storage medium storing a nonvolatile program code executable by a processor, where instructions included in the program code may be used to execute the method described in the foregoing method embodiment, and specific implementation may refer to the method embodiment, which is not described herein again.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the system described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system may be implemented in other ways. The above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and there may be other divisions in actual implementation, and for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or modules through some communication interfaces, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A logistics management system, characterized in that, the system is applied to a warehouse; the system comprises a material preparation module, a material warehousing module, a material ex-warehouse module and a material distribution module which are sequentially connected in a communication manner;
the material preparation module is used for acquiring specific information of materials to be put in storage, generating identification codes of the materials to be put in storage, and carrying out box assembling and tray assembling operation on the materials to be put in storage according to the identification codes, bar codes of the material boxes and RFID labels of the trays;
the material warehousing module is used for generating a warehousing task according to a pre-stored inventory condition, the materials to be warehoused and an RFID label of a first forklift carrying and storing the materials to be warehoused, controlling the first forklift to warehouse a tray storing the materials to be warehoused according to the warehousing task, and updating the inventory condition; the warehousing task comprises warehousing warehouse location information and an RFID label of the first forklift; the inventory condition at least comprises specific information, identification codes, bar codes corresponding to the bins and RFID tags corresponding to the trays of the materials stored in the warehouse at present;
the material delivery module is used for receiving a stock preparation demand, generating a delivery task according to the stock preparation demand and the stock condition, controlling a second forklift in the warehouse to deliver a material box for storing the material to be delivered out of the warehouse based on the delivery task, and updating the stock condition; the stock preparation requirements comprise the types, the sorting amount and the required stations of the materials to be delivered from the warehouse; the delivery task at least comprises a bar code of a bin for storing materials to be delivered and an RFID chip label of a tray;
the material distribution module is used for controlling the second forklift to arrive at the required station, receiving a material verification result sent by the required station, and checking the stock condition according to the verification result;
when the materials to be put in storage are parts; the specific information comprises quality control attributes and key product characteristics; the material preparation module comprises a technical state identification submodule, a box combining submodule and a dish combining module;
the technical state recognition submodule is used for recognizing the quality inspection attribute and the key product characteristic of the part and generating an identification code of the part;
the box assembling sub-module is used for binding the identification codes of the parts with the serial numbers of the material box after the parts are placed in the material box; the number of the bin is obtained by scanning a bar code of the bin;
the plate combination module is used for binding the serial number of the workbin with the identity code of the tray after a set number of the workbin are placed on the tray; the identity code of the tray is obtained by scanning the RFID tag of the tray.
2. The system according to claim 1, wherein the material warehousing module comprises a warehouse location division submodule, a warehousing task determination module and a warehousing control module;
the storage position dividing submodule is used for dividing the storage position according to the pre-stored storage condition and the material to be stored in the storage by adopting a production plan arrangement algorithm;
the warehousing task determining module is used for determining the warehousing position information and the coding information of the first forklift as warehousing tasks; the coded information of the first forklift is obtained by scanning an RFID tag of the first forklift;
and the warehousing control module is used for controlling the first forklift to warehouse in the tray storing the materials to be warehoused and updating the inventory condition according to the identification code, the bar code of the bin and the RFID label of the tray.
3. The system of claim 1, wherein the material warehousing module further comprises a warehousing mode selection sub-module; the warehousing mode selection submodule is used for selecting a warehousing mode of the tray; the warehousing mode comprises a channel door warehousing mode and a rolling machine warehousing mode.
4. The system according to claim 1, wherein the material delivery module comprises a delivery task generation submodule and a delivery control module;
the ex-warehouse task generation submodule is used for receiving a stock preparation requirement and generating an ex-warehouse task according to the stock preparation requirement and the stock condition;
the ex-warehouse control module is used for controlling a second fork truck in the warehouse to reach the warehouse location corresponding to the ex-warehouse task based on the ex-warehouse task, controlling the second fork truck to ex-warehouse the material box storing the material to be ex-warehouse after the material box storing the material to be ex-warehouse corresponding to the ex-warehouse task is placed on the forklift, and updating the stock condition according to the bar code of the material box storing the material to be ex-warehouse.
5. The system of claim 4, wherein the material out-of-warehouse module further comprises an out-of-warehouse material indication sub-module; and the delivery material indicating submodule is used for sending the bar code of the bin for storing the materials to be delivered to the second forklift, and controlling the second forklift to display the bar code of the bin so that a picker can pick the materials according to the bar code.
6. The system of claim 1, wherein the material delivery module comprises a station delivery sub-module and a verification result receiving module;
the station distribution sub-module is used for sending the position information of the required station to the second forklift so as to control the second forklift to reach the required station;
the checking result receiving module is used for receiving a material checking result sent by the required station and checking an inventory according to material information in the checking result; and the material checking result is obtained by scanning and storing the bar code of the material box of the material to be delivered.
7. The system of claim 1, further comprising a storage module; the storage module is respectively in communication connection with the material preparation module, the material warehousing module, the material ex-warehouse module and the material distribution module;
the storage module is used for storing the inventory condition, the updating condition of the inventory condition, the warehousing task, the ex-warehouse task and the material checking result; the update condition comprises update time and update content.
8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the system of any of claims 1 to 7 when executing the computer program.
9. A computer-readable medium having non-volatile program code executable by a processor, wherein the program code, when executed by the processor, implements the system of any of claims 1-7.
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